NEST in cavities, built of regulation material, very warmly lined.

EGGS, 6 to 9, white, flecked with brown and lilac.

Northern North America. Breeds in Hudsonian and Canadian zones from Kowak valley, Alaska, and tree limit in central Mackenzie from Keewatin, south to southern British Columbia, central Alberta (casually, Montana), northern Manitoba, central Ontario and Ungava. In winter, casually south to northern Illinois.

NEST in natural cavities as usual, built of moss, leaves and fur.

EGGS, 6 or 7, white, specked with chestnut, brown and lilac.

Northeastern North America. Breeds in Boreal zones from northern Quebec and Newfoundland south to the Adirondacks of New York and mountains of northern Vermont and central New Hampshire. In winter, casually south to Massachusetts, Rhode Island and Connecticut.

A 50-foot tree distributed from the Arctic Circle south to northern Pennsylvania, Indiana, Illinois, Minnesota and on eastern foot hills of the Rockies. The largest and most abundant tree in central Labrador.